#include <stdio.h>

int main(void)
{
    int month, day, year;

    printf("Enter date (mm/dd/yyyy): ");
    scanf("%d /%d /%d", &month, &day, &year);

    printf("Dated this %d", day);
    switch (day)
    {
    case 1: case 21: case 31:
        printf("st");
        break;
    case 2: case 22:
        printf("nd");
        break;
    case 3: case 23:
        printf("rd");
        break;
    default:
        printf("th");
        break;
    }
    printf(" day of ");

    switch (month) 
    {
    case 1:  printf("January");   break;
    case 2:  printf("February");  break;
    case 3:  printf("March");     break;
    case 4:  printf("April");     break;
    case 5:  printf("May");       break;
    case 6:  printf("June");      break;
    case 7:  printf("July");      break;
    case 8:  printf("August");    break;
    case 9:  printf("September"); break;
    case 10: printf("October");   break;
    case 11: printf("November");  break;
    case 12: printf("December");  break;
    }

    printf(", 20%.2d.\n", year);

    return 0;
}